I am looking to buy a new ford focus and wondering if it is worth paying the xtra amount for the diffrent 1.6 engine i.e The basic one is 1.6 Duratec 100 PS Stage IV, 5 Speed Manual or pay an extra £1000 pounds for the 1.6 Duratec Ti-VCT 115 S4, 5 Speed Manual.

Please could any bopdy tell me what the big diffrence is beteween the engines and is it worth the extra 1000 pounds ???

The 115 offers greater output and comes with what's known as variable valve timing as to improve fuel economy. You'll have to check with what the engines are rated for, emission wise, and I'd check with insurance to see if there is an additional premium for the engine. Personally, I'd stick with the base 100 PS 1.6L for everyday driving and save the thousand pounds. With exchange the way it is, £1000 is roughly $2200 USD...that seems a LOT to pay for an extra 15 PS with variable valve timing. If anything I'd spend more and get the diesel if you have the means, otherwise, stick with the base unless you really need the added oomph.